The reasons behind all of this are clear: SE is merely preparing for the Apocolypse.
Think about it: The Quadavs are the most technically advanced of Beastmen(I think), and also the only one of the major three to detect by sound. Inevitably, they will realize there is an advantage to be had here, and will assault the sun itself... or suns, I'm not really sure how many this game has.
After blowing up the sun, everything will become a hellish nightmare of darkness, full of Quadavs, Anticans, and Sahagin to kill us all. And who will be our saviors in this time of horror? I'll give you a hint: it's the guys with the biggest ears, because, as Daredevil has taught us, sound is actually the best sense, and being blind is actually a good thing